Quote:

Oh... you shouldnt use VANILLAKEY in MUI. MUI classes are relying on IDCMP_RAWKEY and when you add IDCMP_VANILLAKEY to IDCMP flags some classes stop working. This is also case in MUI 3 with other text input classes.

So you should use RAWKEY only and using MapRawKey() get vanilla key code. In MorphOS 2/MUI 4 you can also get unicode so you dont have to do conversion anymore:

switch (IntuiMessage->Class)
{
case IDCMP_RAWKEY:
ULONG ucs4_keycode = getv(IntuiMessage, IMSGA_UCS4)
break;
}